From: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
Date: Mon, 21 May 2007 17:26:05 +0000 (+0300)
Subject: UBI: bugfix in ubi_leb_change()
X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=a443db48e05a8d2d8db0a17409655c58da65a35e;p=openwrt%2Fstaging%2Fblogic.git

UBI: bugfix in ubi_leb_change()

Do not call 'ubi_wl_put_peb()' if the LEB was unmapped.

Reported-by: Gabor Loki <loki@inf.u-szeged.hu>
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
---

diff --git a/drivers/mtd/ubi/eba.c b/drivers/mtd/ubi/eba.c
index a1820151e9f9..0db8dc7af8a0 100644
--- a/drivers/mtd/ubi/eba.c
+++ b/drivers/mtd/ubi/eba.c
@@ -891,11 +891,13 @@ retry:
 		goto write_error;
 	}
 
-	err = ubi_wl_put_peb(ubi, vol->eba_tbl[lnum], 1);
-	if (err) {
-		ubi_free_vid_hdr(ubi, vid_hdr);
-		leb_write_unlock(ubi, vol_id, lnum);
-		return err;
+	if (vol->eba_tbl[lnum] >= 0) {
+		err = ubi_wl_put_peb(ubi, vol->eba_tbl[lnum], 1);
+		if (err) {
+			ubi_free_vid_hdr(ubi, vid_hdr);
+			leb_write_unlock(ubi, vol_id, lnum);
+			return err;
+		}
 	}
 
 	vol->eba_tbl[lnum] = pnum;